About

Smart

ProperSpell’s unparalleled spell checking service is based on the actual usage of words and phrases, as opposed to a dictionary, so it can suggest common spellings for proper nouns and popular terms. It can also determine the context of a search term in order to provide intelligent search alternatives. No other spell checker comes close!

Easy

The ProperSpell API allows you to utilize the same powerful spelling suggestions provided by the major search engines. Our simple REST service provides an incredibly fast and intuitive upgrade to your application’s search capabilities.

Proven

The ProperSpell spell checker has been in use for over five years on web catalogs at Academic and Public Libraries around the world, including Stanford University and the Joint World Bank / International Monetary Fund libraries. In that time it has provided suggestions for authors’ names and the titles of books to millions of people. Now you can give your users the power to find what they’re looking for, when they’re looking for it.

Inexpensive

The pricing for the ProperSpell API is incredibly simple and inexpensive: US$1 for every 1,000 requests made to our server. Invoices will be sent on a monthly basis. There is a minimum fee of US$5 charged per month, which includes your first 5,000 queries.